1020673787 has 16 divisors (see below), whose sum is σ = 1228968960. Its totient is φ = 828081792.

The previous prime is 1020673769. The next prime is 1020673847. The reversal of 1020673787 is 7873760201.

It is a cyclic number.

It is not a de Polignac number, because 1020673787 - 2⁶ = 1020673723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020673487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186563 + ... + 191955.

It is an arithmetic number, because the mean of its divisors is an integer number (76810560).

Almost surely, 2^1020673787 is an apocalyptic number.

1020673787 is a deficient number, since it is larger than the sum of its proper divisors (208295173).

1020673787 is a wasteful number, since it uses less digits than its factorization.

1020673787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6842.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 1020673787 is about 31947.9856485507. The cubic root of 1020673787 is about 1006.8443108691.

The spelling of 1020673787 in words is "one billion, twenty million, six hundred seventy-three thousand, seven hundred eighty-seven".